CVE-2020-25494

Xinuos (formerly SCO) Openserver v5 and v6 allows attackers to execute arbitrary commands via shell metacharacters in outputform or toclevels parameter to…

published December 18, 2020

CVSS
—
EPSS
39%
Percentile
98.6
In the wild
Unconfirmed
What it is

⚠️ A crafty little loophole lets attackers use shell metacharacters in Openserver’s parameters — like sneaky wordplay that gets past a strict editor! 🕵️‍♂️ Think of it as a restaurant where the servers don’t check your orders. If a diner sneaks in a magic phrase, they could command the kitchen to whip up anything — even something dangerous! This vulnerability could allow attackers to execute arbitrary commands on the server, potentially leading to a breach of sensitive data or complete system takeovers. Imagine an unauthorized guest gaining access to the chef's secret recipes or even shutting down the entire kitchen!

Put simply

Think of it as a restaurant where the servers don’t check your orders. If a diner sneaks in a magic phrase, they could command the kitchen to whip up anything — even something dangerous! CVE-2020-25494 affects Xinuos Openserver v5 and v6, allowing for command injection through improperly sanitized input in the outputform or toclevels parameters of the cgi-bin/printbook CGI script.

What to do

This vulnerability could allow attackers to execute arbitrary commands on the server, potentially leading to a breach of sensitive data or complete system takeovers. Imagine an unauthorized guest gaining access to the chef's secret recipes or even shutting down the entire kitchen! To mitigate this vulnerability, immediately sanitize all inputs to the affected script and consider applying any patches available from Xinuos. Reviewing your server configuration and limiting command execution permissions can also provide an extra layer of protection. You've got this! Follow these steps to tighten up your security and protect your server! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.39193 · 98.6th percentile
Published
2020-12-18T14:27Z
EPSS history
Timeline
  • 18 DEC 14:27Z
    Xinuos (formerly SCO) Openserver v5 and v6 allows attackers to execute arbitrary commands via shell metacharacters in outputform or toclevels parameter to…
    cvelistv5